公开(公告)号：US20210320685A1

公开(公告)日：2021-10-14

申请号：US17301613

申请日：2021-04-08

Applicant: QUALCOMM INCORPORATED

Inventor： Kiran VENUGOPAL ,  Wooseok NAM ,  Sungwoo PARK ,  Tianyang BAI ,  Tao LUO ,  Junyi LI

IPC: H04B1/62 ,  H04W72/04 ,  H04W24/08 ,  H04L5/00

Abstract: Wireless communication devices, systems, and methods related to mechanisms for transmitting and receiving reference signals in a high-speed train (HST) single frequency network (SFN). A base station (BS) determines a first frequency pre-compensation value for a reference signal transmitted via a first transmission and reception point (TRP) and a second frequency pre-compensation value for a reference signal via a second TRP. The BS notifies a user equipment (UE) of the first and second pre-compensation values through at least one of the TRPs. The BS applies the first pre-compensation value to the reference signal via the first TRP and the second pre-compensation value to the reference signal via the second TRP. The UE adjusts its tracking loop for the reference signal based on the pre-compensation values, reducing estimation and/or search overhead at the UE.

公开(公告)号：US20210235307A1

公开(公告)日：2021-07-29

申请号：US17247165

申请日：2020-12-02

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Yan ZHOU ,  Tao LUO ,  Junyi LI

IPC: H04W24/10 ,  H04W16/28

Abstract: Various aspects of the present disclosure generally relate to indicating beams for user equipment beam reporting. In some aspects, a user equipment (UE) may receive, from a base station, an indication of a plurality of candidate beams on which the base station is able to simultaneously transmit communications to the UE, and determine a first beam and a second beam from among the plurality of candidate beams, based at least in part on one or more measurements of the plurality of candidate beams. The UE may transmit an indication of the first beam and the second beam to the base station, and receive communications simultaneously on the first beam and the second beam. Numerous other aspects are provided.

公开(公告)号：US20210235284A1

公开(公告)日：2021-07-29

申请号：US17114289

申请日：2020-12-07

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Yan ZHOU ,  Sony AKKARAKARAN ,  Tao LUO ,  Junyi LI

IPC: H04W16/28 ,  H04B7/024 ,  H04W52/02

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for processing transmissions with multiple beams. For example, the techniques may be implemented in wireless systems in which any type of network entity (gNB or transmission reception points TRPs) send directional transmissions to user equipments (UEs) that receive the directional transmissions with receive beams.

公开(公告)号：US20210195626A1

公开(公告)日：2021-06-24

申请号：US17126820

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Yan ZHOU ,  Tianyang BAI ,  Tao LUO ,  Junyi LI

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for determining default parameters to use in the absence of a signaled uplink transmission configuration indicator (TCI) state for uplink transmissions. In some cases, a UE may determine, based on one or more rules, at least one of a default uplink beam or default path loss reference signal (PL RS) to use an uplink transmission in the absence of a signaled uplink transmission configuration indicator (TCI) state for the uplink transmission; and send the uplink transmission in accordance with the determination.

公开(公告)号：US20210194558A1

公开(公告)日：2021-06-24

申请号：US17125865

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Yan ZHOU ,  Wooseok NAM ,  Arumugam CHENDAMARAI KANNAN ,  Juergen CEZANNE ,  Junyi LI ,  Tao LUO

IPC: H04B7/06 ,  H04W24/10 ,  H04L5/00

Abstract: A UE may determine that two or more resources on two or more beams from a base station have phase continuity. The UE may determine, based on the two or more resources on the two or more beams having the phase continuity, a joint channel information associated with the two or more beams using individual measurements respectively corresponding to the two or more beams. The UE may then transmit, to the base station, a group-based beam report including the joint channel information. The base station may provide the UE with an indication that the two or more resources on the two or more beams from the base station have phase continuity. The base station may receive the group-based beam report from the UE based on the indication, and the base station may configure communication with the UE on a joint channel based on the group-based beam report.

公开(公告)号：US20210153239A1

公开(公告)日：2021-05-20

申请号：US17098653

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Wooseok NAM ,  Sungwoo PARK ,  Jung Ho RYU ,  Kiran VENUGOPAL ,  Tao LUO ,  Junyi LI

IPC: H04W72/12 ,  H04L29/08 ,  H04L12/18 ,  H04B7/06

Abstract: This disclosure provides methods, devices and systems for beamforming in wireless communications. Some implementations more specifically relate to beamforming configurations for multicast communications. A transmitting device may transmit multicast data to multiple receiving devices, concurrently, via a physical downlink shared channel (PDSCH). The PDSCH may be preceded by a physical downlink control channel (PDCCH). The PDCCH may provide scheduling information for the PDSCH, including a multicast beam associated with the PDSCH and a timing offset or delay between the PDCCH and the PDSCH. A receiving device may determine that the PDSCH contains multicast data based on an indication in the PDCCH. To receive the PDSCH, each receiving device may tune its antennas in a direction of the scheduled multicast beam or a default beam based on the delay between the PDCCH and the PDSCH.

公开(公告)号：US20210136762A1

公开(公告)日：2021-05-06

申请号：US17083049

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Wooseok NAM ,  Tao LUO ,  Mostafa KHOSHNEVISAN ,  Kiran VENUGOPAL ,  Tianyang BAI ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04B17/382 ,  H04W24/10

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a network entity from a user equipment (UE), a measurement report, wherein the network entity corresponds to a serving network entity; and determining, by the network entity, a single frequency network (SFN) network entity group for the UE based on the measurement report, wherein the SFN network entity group corresponds to a one or more neighbor network entities designated for transmitting SFN data to the UE.

公开(公告)号：US20210126693A1

公开(公告)日：2021-04-29

申请号：US16949215

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Yan ZHOU ,  Jung Ho RYU ,  Kiran VENUGOPAL ,  Tao LUO ,  Junyi LI

IPC: H04B7/06 ,  H04W76/19 ,  H04W72/14 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a beam failure associated with a cell of a plurality of cells. The UE may selectively transmit a beam failure recovery request (BFRQ) communication for the cell based at least in part on a determination of whether a threshold time period has elapsed since a previous BFRQ communication was transmitted for the cell or another cell of the plurality of cells. Numerous other aspects are provided.

公开(公告)号：US20210112433A1

公开(公告)日：2021-04-15

申请号：US16948963

申请日：2020-10-07

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Yan ZHOU ,  Tao LUO ,  Kiran VENUGOPAL ,  Tianyang BAI ,  Junyi LI

IPC: H04W24/10 ,  H04B17/309

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may determine a configuration for differential layer 1 (L1) signal to interference noise ratio (L1-SINR) reporting; transmit, to a user equipment (UE), an indicator of the configuration for differential L1-SINR reporting; and receive, from the UE, one or more differential L1-SINR reports in accordance with the configuration for differential L1-SINR reporting. Numerous other aspects are provided.

公开(公告)号：US20210111780A1

公开(公告)日：2021-04-15

申请号：US16801899

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Kiran VENUGOPAL ,  Tianyang BAI ,  Jung Ho RYU ,  Tao LUO ,  Junyi LI

IPC: H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04W72/04 ,  H04W76/18

Abstract: Certain aspects of the present disclosure provide techniques for configuring beam failure recovery operations. A method includes performing beam failure detection of a beam pair link associated with a secondary cell, wherein a user equipment (UE) is configured with one or more uplink control channel groups, each of the one or more uplink control channel groups comprising a corresponding plurality of component carriers where one of the corresponding plurality of component carriers is designated for communication of an uplink control channel for the corresponding uplink control channel group; determining one or more cells on which to send a beam failure recovery request (BFRQ) message based on a number of uplink control channel groups the UE is configured with; sending the BFRQ on the one or more cells; and receiving a beam failure recovery response message on at least one of the one or more cells.